Gas-burner and chimney



(No Model.)

E. BLACKMAN. GAS BURNER AND GHIMNEY.

N PEYERS, Phnxu-mmgnpher. wmingm, n. C.

lllnrrnn drains YFmrnnrr @iraient EBENEZER BIJ-AGKMAN, OF BROOKLYN, NFVYGRK.

GAS-BURNER AND CHHVHNEY.

SPECIFICATION forming part of Letters Patent No. 302,619, dated July 29,1884. Application iled February 2G, 1883, (No model.)

To @ZZ iff/1,0m, t may concern.-

Be it known that I, Ennnnznn BLACKMAN, of Brooklyn, in Kings county, andthe State of New York, have invented a certain new and usefulImprovement in Gas-Burners and their Chimneys, of which the following isa specification. p

The improvement consists in the combination ,with an annular burner, ofan air-distrib uter, a circular deiiector extending around the burnerand having an indentation at a point considerably below the burner-tip,and having the upper edge turned abruptly inward at a point considerablyhigher than the burner-tip, so as to form a circular opening, and achimney having an indentation about threefourths of an inch above theburner-tip.

In the'accompanying drawings, Figure l is a sectional elevation of agas-burner and chimney embodying my improvement, and Fig. 2 is a topview ofthe burner.

Similar letters of reference designate corresponding parts in bothfigures.

A designates a collar, which is located at the bottom of the gasburner,and provided with an internal scre\vthread,whe1eby it may be secured tothe nipple of a gasiixture. Above the collar A a chamber, B, is located.Gas from the nipple of thegas-iixture enters this chamber, and passesthence along diverging tubes C to a burner-tip, D, which is of circular:form and has an annular space for the gas. The gas escapes throughsmall perforations a at the top. The chamber B is provided with a valve,which serves to regulate the escape of gas, and is provided with an arm,B', whereby it may be turned.

E designates a gallery in which a chimney, F, is supported. As hereshown, this gallery is provided at the outer edge with resilientarms,which embrace the chimney and hold it in place. This gallery may besupported from the burner-tip in any suitable manner. In this example ofmy invention it is formed with and supported by an air-distributer, G,consisting of a nely-perforated plate. This air-distributer has itsinner edge turned upward and made to lit the exterior of the burnertipsnugly. Vhen thus made, it may be held in place by friction only.

H designates a deflector fitting on the airdistributcr G. It is shown ashaving a shoul- This deflector may be secured in place in any suitablemanner. I have shown it as provided with lugs c, which extend laterallyfrom its base and engage with catches d, arranged upon theair-distributer. It will be observed that the air-distributer isperforated outside as Well as inside of the deilector.

All of the above-described parts, excepting the chimney F, may be madeof brass or other suitable metal. The chimney is of circular form, andhas an indentation, f, at a point about three fourths of an inch Iabovethe burner-tip. Above its indentation it is preferably smaller indiameter than at the base portion. The chimney may be made of glass, asusual. Gas escaping from the burner-tip produces an annular iiame. Airentering the airdistributer is deflected upon the fiame by the deflectorH at a point above the burnertip, and also by the indentation of thechimney at a point still higher. Avery perfect combustion of gas, andhence a very brilliant dame, is obtained in this way. The shoulder b ofthe deflector H is advantageous, because it checks the ascension of airinside the deiiector, and by causing it to impinge upon the burner-tipinsures its being thoroughly heated before reaching the llame. The air:admitted between the deflector II and the chimney F is also heatedbefore reaching the flame. I have found that a chimney of at least abouteight inches in length will be serviceable with a gasburner like the oneshown-on` in other words, a chimney extending about seven inches abovethe tip of the burner. I have found that the efficiency of the burner isincreased and a better combustion obtained by forming the chimney withan indentation at a point about three-fourths of an inch above theburner-tip. The chimney extending about seven inches above theburner-tip, and the deflect-or extending toward the burner-tip below theindentation in the chimney, also conduce to this result.

Vhat I claim as my invention, and desire to secure by Letters Patent,ism

The combination, with au annular burner,

IOG

of an air-distributer, a circular deilector eX- situated as describedwith reference to the tending around the burner and having aninburner-tip, substantially as specified. dentation at a pointconsiderably below the r T burner-tip, and having the upper edge turnedEBENEAER BLACKMAB' 5 abruptly inward at a point considerably high-Vitnesses:

er than the burner-tip, so as to forni a circular T. J. KEANE,opening,and a chimney having an indentation ED L. MORAN.

